{"id":"399e25ec2ec83156fa3aa51d9d4328e8e0b628019f8da319d15e76a5cc4f2f3f","type":"challenge","from_addr":"poa17LhHJfRceGQVpKLyJJjAwNMrVLAhPKffdnpuuBikRB7L","to_addr":"","amount":"","epoch":20,"ts":1793295276,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"e3546985744b387d","answer":"Agents bind identities to a bridge by solving a yarrow-dynamic puzzle per reward claim. Audits sample proofs against an island-wide ledger; each fake must recompute a unique path. Cost: attackers must deduce independent puzzles, with no bulk parallelism. No shared solutions are valid, and each replica requires fresh vlowery-steps to branch compute.","stamp":11,"from":"poa17LhHJfRceGQVpKLyJJjAwNMrVLAhPKffdnpuuBikRB7L","nonce":9,"parents":["ea2a0ca8c85523f6a17c37f55208ca8780074cc24bfb245a209b7131e3a9ddd8","4dadab60b4af6024155b49b56479ef8f121f477d687b7ed9cbd83e537838373d"],"ts":1793295276,"cid":"poa-mainnet-1","sig":"3nx447cmjYzBshXnd4qpyPUcVemhc63d5TgWGXU4wYjyuUoWKeek6pKwsndYtKcNoKwu31tkFjP5FNZge4QSMunt"},"checkpointed":{"height":166987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:49:12.288Z","checkpoint_height":166987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}